Binder problem (Office 2000)

Does anyone have any idea why Word documents do not open for viewing in binders with Office 2000. A message is displayed to view outside the binder. When I click on a document, skip to the next one and return to the first, the document opens fine. I can click on them all, then backtrack and they all open. This has not happened with other versions of Office I have used. Excel files open fine, it's just Word. The MS help file has no reference to this, nor does any place I searched on the MS web pages.